Posts grouped by subject

Animations

10 Aug 2024 » Snakes and ladders
06 Aug 2023 » Model life tables
17 Jun 2023 » Simpler drawing of Pacific choropleth maps
05 Dec 2020 » Animated map of World War I UK ship positions
13 Sep 2020 » Trying out Processing
20 Apr 2019 » Animating the US Treasury yield curve rates
06 Nov 2018 » Suppressed data (left-censored counts)
07 Oct 2018 » Understanding the limitations of group-level inequality data
19 Nov 2017 » Seasonality of plagues
04 Jun 2017 » Global choropleth maps of military expenditure
05 Jan 2017 » Cross-validation of topic modelling
02 Jul 2016 » Animated world inequality map
22 May 2016 » Visual contrast of two robust regression methods
23 Jan 2016 » Filling in the gaps - highly granular estimates of income and population for New Zealand from survey data
21 Nov 2015 » Create ARIMA time series from bottom up
15 Nov 2015 » Linear model with time series random component
25 Oct 2015 » Silver flows in the seventeenth and eighteenth centuries
07 Aug 2015 » Simulating backgammon players' Elo ratings

Australia

08 Sep 2024 » Gender and sexuality in Australian surveys and census
30 Aug 2024 » Ratios of indexed line charts
14 Nov 2020 » Reproduce analysis of a political attitudes experiment
07 Sep 2019 » Poisson point processes, mass shootings and clumping
25 Aug 2019 » Inferring a continuous distribution from binned data
28 Jul 2019 » Forecasting unemployment
19 May 2019 » Polls v results
15 May 2019 » House effects, herding, and the last few days before the election
22 Apr 2019 » Familiarisation with the Australian Election Study
31 Mar 2019 » Website with Australian federal election forecasts
30 Mar 2019 » Better predictions for AFL from adjusted Elo ratings
23 Mar 2019 » AFL teams Elo ratings and footy-tipping
11 Mar 2019 » Exploring swings in Australian federal elections
02 Mar 2019 » Bayesian state space modelling of the Australian 2019 election

Blogging

07 Apr 2019 » Using svglite with web fonts
26 Jul 2015 » Hello world!

Books

11 Oct 2020 » Hamlet, data models, interaction graphs and other cool stuff
05 May 2018 » Survey books, courses and tools
17 Feb 2018 » Books I liked in 2017
04 Mar 2017 » Visualising relationships between children's books
14 Jan 2017 » Books I like

Bots

29 Dec 2015 » A (not too talkative) twitterbot is born

ClusterAnalysis

26 Sep 2020 » Free text in surveys - important issues in the 2017 New Zealand Election Study
04 Mar 2017 » Visualising relationships between children's books

CodingStyle

09 Sep 2017 » R Markdown for documents with logos, watermarks, and corporate styles
17 Jun 2017 » Stats NZ encouraging active sharing for microdata access projects
16 Sep 2016 » Why you need version control
04 Apr 2016 » Election analysis contest entry part 2 - building the nzelect R package

Crime

03 Nov 2019 » Re-creating survey microdata from marginal totals
07 Sep 2019 » Poisson point processes, mass shootings and clumping
01 Apr 2018 » Deaths per firearm violence event
02 Jul 2017 » Family violence and economic deprivation in New Zealand
26 Nov 2015 » Deaths from assault over time in 40 relatively rich countries

DataFromTheWeb

30 Aug 2024 » Ratios of indexed line charts
22 Jul 2017 » Inter-country inequality and the World Development Indicators
04 Jun 2017 » Global choropleth maps of military expenditure
02 Jul 2016 » Animated world inequality map
30 Jun 2016 » International Household Income Inequality data
06 Feb 2016 » Data from the World Health Organization API
29 Dec 2015 » A (not too talkative) twitterbot is born
26 Dec 2015 » Network charts of commuting in New Zealand with R and D3
21 Dec 2015 » X13-SEATS-ARIMA as an automated forecasting tool
12 Dec 2015 » Importance of exports and economic growth, cross-country time series
05 Dec 2015 » Inequality measures in the World Development Indicators
26 Nov 2015 » Deaths from assault over time in 40 relatively rich countries

DataVisualization

17 Jun 2023 » Simpler drawing of Pacific choropleth maps
13 Oct 2022 » Pacific island choropleth map
14 Aug 2022 » Pacific island population pyramids
26 Mar 2022 » Smoothing charts of Supreme Court Justice nomination results
05 Feb 2021 » Visualising stock prices and volume
13 Sep 2020 » Trying out Processing
23 Aug 2020 » Lines of best fit

Demography

27 Jul 2024 » Population age changes in the Pacific
05 May 2024 » Reproducing and adapting the UN Population Projections
06 Aug 2023 » Model life tables
14 Aug 2022 » Pacific island population pyramids
01 Dec 2018 » Number of births in the twentieth century
01 Jul 2018 » Spend on petrol by income
26 Jun 2018 » Demography simulations
31 May 2018 » Demystifying life expectancy calculations

Distributions

06 Nov 2024 » Regressions where the coefficients are a simplex.
24 Aug 2024 » Polar-centred maps
20 Aug 2024 » Perturbing a non-symmetrical probability distribution
24 Jun 2023 » Weighted versus unweighted percentiles
26 Sep 2020 » Free text in surveys - important issues in the 2017 New Zealand Election Study
06 Sep 2020 » Mixture distributions and reporting times for Covid-19 deaths in Florida
18 Jul 2020 » Estimating Covid-19 reproduction number with delays and right-truncation
07 Sep 2019 » Poisson point processes, mass shootings and clumping
25 Aug 2019 » Inferring a continuous distribution from binned data
24 Nov 2018 » Counting digits
18 Nov 2018 » A more systematic look at suppressed data
06 Nov 2018 » Suppressed data (left-censored counts)
01 Apr 2018 » Deaths per firearm violence event
23 Jan 2016 » Filling in the gaps - highly granular estimates of income and population for New Zealand from survey data
12 Sep 2015 » Sampling distribution of Gini coefficient

Economics

30 Aug 2024 » Ratios of indexed line charts
24 Nov 2019 » Cost-benefit analysis in R
28 Jul 2019 » Forecasting unemployment
20 Apr 2019 » Animating the US Treasury yield curve rates
07 Oct 2018 » Understanding the limitations of group-level inequality data
14 Aug 2018 » Time series intervention analysis with fuel prices
10 Aug 2018 » Leading indicators of economic growth
01 Aug 2018 » Business confidence and economic growth
22 Jul 2017 » Inter-country inequality and the World Development Indicators
26 Dec 2016 » Extracting data on shadow economy from PDF tables
20 Feb 2016 » Dynamic Stochastic General Equilibrium models made (relatively) easy with R
12 Dec 2015 » Importance of exports and economic growth, cross-country time series

Finance

14 Feb 2021 » Making a database of security prices and volumes
05 Feb 2021 » Visualising stock prices and volume

Forecasting

20 Jul 2019 » Time series forecast cross-validation
15 Jun 2018 » Minor updates for ggseas and Tcomp R packages
15 Oct 2017 » New Zealand fatal traffic crashes
22 Jan 2017 » Does seasonally adjusting first help forecasting?
24 Dec 2016 » forecastHybrid 0.3.0 on CRAN
07 Dec 2016 » Why time series forecasts prediction intervals aren't as good as we'd hope
27 Nov 2016 » Error, trend, seasonality - ets and its forecast model friends
07 May 2016 » Announcing new forecastHybrid package
30 Jan 2016 » Better prediction intervals for time series forecasts
21 Dec 2015 » X13-SEATS-ARIMA as an automated forecasting tool

Games

10 Aug 2024 » Snakes and ladders
01 Feb 2020 » Lewis Carroll's proposed rules for tennis tournaments
26 Jan 2020 » Analysing the effectiveness of tennis tournament seeding
30 Mar 2019 » Better predictions for AFL from adjusted Elo ratings
23 Mar 2019 » AFL teams Elo ratings and footy-tipping
23 Dec 2018 » Simulating Persian Monarchs gameplay
27 Oct 2018 » Simulating simple dice games
19 Mar 2016 » Skill v luck in determining backgammon winners
07 Aug 2015 » Simulating backgammon players' Elo ratings

Health

08 Sep 2024 » Gender and sexuality in Australian surveys and census
28 May 2023 » Covid-19 vaccination rates in the Pacific
04 Oct 2020 » Facebook survey data for the Covid-19 Symptom Data Challenge
06 Sep 2020 » Mixture distributions and reporting times for Covid-19 deaths in Florida
29 Aug 2020 » Time series cross validation of effective reproduction number nowcasts
09 Aug 2020 » Essentially random isn't the same as actually random
02 Aug 2020 » Visualisation options to show growth in occupations in the Australian health industry
18 Jul 2020 » Estimating Covid-19 reproduction number with delays and right-truncation
30 May 2020 » A health data firm making extraordinary claims about its data
23 May 2020 » Ordering bars within their clumps in a bar chart
17 May 2020 » Incidence of COVID-19 in Texas after adjusting for test positivity
09 May 2020 » Test positivity rates and actual incidence and growth of diseases
21 Mar 2020 » Impact of a country's age breakdown on COVID-19 case fatality rate
17 Mar 2020 » COVID-19 cumulative observed case fatality rate over time
01 Mar 2020 » Log transform or log link? And confounding variables.
23 Feb 2020 » Body Mass Index
06 Feb 2016 » Data from the World Health Organization API

History

05 Dec 2020 » Animated map of World War I UK ship positions
11 Oct 2020 » Hamlet, data models, interaction graphs and other cool stuff
19 Nov 2017 » Seasonality of plagues
04 Jun 2017 » Global choropleth maps of military expenditure
23 Jan 2017 » US Presidential inauguration speeches
14 May 2016 » Minimalist Tufte-inspired axis text with Scottish-New Zealand historical material
25 Oct 2015 » Silver flows in the seventeenth and eighteenth centuries

Inequality

24 Jun 2023 » Weighted versus unweighted percentiles
07 Oct 2018 » Understanding the limitations of group-level inequality data
19 Aug 2017 » Estimating Gini coefficient when we only have mean income by decile
05 Aug 2017 » Sampling distribution of weighted Gini coefficient
22 Jul 2017 » Inter-country inequality and the World Development Indicators
02 Jul 2016 » Animated world inequality map
30 Jun 2016 » International Household Income Inequality data
05 Dec 2015 » Inequality measures in the World Development Indicators
12 Sep 2015 » Sampling distribution of Gini coefficient

MachineLearning

18 Feb 2017 » Moving largish data from R to H2O - spam detection with Enron emails
10 Dec 2016 » Extrapolation is tough for trees!
06 Nov 2016 » Timeseries forecasting using extreme gradient boosting
23 Jan 2016 » Filling in the gaps - highly granular estimates of income and population for New Zealand from survey data

Metascience

13 Jun 2020 » Fixing scientific publishing and peer review

ModellingStrategy

06 Nov 2024 » Regressions where the coefficients are a simplex.
14 Sep 2024 » Stepwise selection of variables in regression is Evil.
04 Jun 2023 » Simulating confounders, colliders and mediators
28 May 2023 » Covid-19 vaccination rates in the Pacific
14 Nov 2020 » Reproduce analysis of a political attitudes experiment
06 Sep 2020 » Mixture distributions and reporting times for Covid-19 deaths in Florida
29 Aug 2020 » Time series cross validation of effective reproduction number nowcasts
23 Aug 2020 » Lines of best fit
09 Aug 2020 » Essentially random isn't the same as actually random
09 May 2020 » Test positivity rates and actual incidence and growth of diseases
18 Apr 2020 » Pragmatic prediction intervals from a quasi-likelihood GLM
01 Mar 2020 » Log transform or log link? And confounding variables.
20 Jul 2019 » Time series forecast cross-validation
18 Nov 2018 » A more systematic look at suppressed data
06 Nov 2018 » Suppressed data (left-censored counts)
10 Aug 2018 » Leading indicators of economic growth
06 May 2017 » Modelling individual party vote from the 2014 New Zealand election study
15 Apr 2017 » Impact of omitted variables on estimating causal effects - simulations
09 Apr 2017 » Exploring propensity score matching and weighting
12 Mar 2017 » Simulations to explore excessive lagged X variables in time series modelling
05 Jan 2017 » Cross-validation of topic modelling
13 Aug 2016 » Elastic net regularization of a model of burned calories
04 Aug 2016 » nzcensus on GitHub
05 Jun 2016 » Bootstrap and cross-validation for evaluating modelling strategies

NZIS2011

05 Jun 2016 » Bootstrap and cross-validation for evaluating modelling strategies
29 May 2016 » Actual coverage of confidence intervals for standard deviation
22 May 2016 » Visual contrast of two robust regression methods
23 Jan 2016 » Filling in the gaps - highly granular estimates of income and population for New Zealand from survey data
12 Sep 2015 » Sampling distribution of Gini coefficient
07 Sep 2015 » Transforming the breaks to match a scale
05 Sep 2015 » Creating a scale transformation
21 Aug 2015 » A better way of visualising income distributions with zeroes and negatives
15 Aug 2015 » Importing the New Zealand Income Survey SURF

NewZealand

14 Nov 2020 » Reproduce analysis of a political attitudes experiment
26 Sep 2020 » Free text in surveys - important issues in the 2017 New Zealand Election Study
06 Jun 2020 » Forecasts for the 2020 New Zealand elections using R and Stan
07 Mar 2020 » New Zealand Election Study webtool
03 Nov 2019 » Re-creating survey microdata from marginal totals
20 Feb 2019 » Seasonality in NZ voting preference?
14 Aug 2018 » Time series intervention analysis with fuel prices
10 Aug 2018 » Leading indicators of economic growth
01 Aug 2018 » Business confidence and economic growth
11 Apr 2018 » Weighted survey data with Power BI compared to dplyr, SQL or survey
10 Feb 2018 » Visualising an ethnicity statistical classification
03 Feb 2018 » Average spend, activities and length of visit in the NZ International Visitor Survey
23 Jan 2018 » How to recruit data analysts for the public sector
15 Oct 2017 » New Zealand fatal traffic crashes
07 Oct 2017 » New Zealand 2017 election results
05 Oct 2017 » nzelect 0.4.0 on CRAN with results from 2002 to 2014 and polls up to September 2017
16 Sep 2017 » Time-varying house effects in New Zealand political polls
09 Sep 2017 » R Markdown for documents with logos, watermarks, and corporate styles
09 Sep 2017 » The long view on New Zealand political polls
20 Aug 2017 » More things with the New Zealand Election Study
02 Jul 2017 » Family violence and economic deprivation in New Zealand
21 May 2017 » Sankey charts for swinging voters
14 May 2017 » Web app for individual party vote from the 2014 New Zealand election study
06 May 2017 » Modelling individual party vote from the 2014 New Zealand election study
30 Apr 2017 » Luke-warm about micromaps
25 Apr 2017 » More cartograms of New Zealand census data (district and city level)!
23 Apr 2017 » Cartograms of New Zealand census data
21 Mar 2017 » House effects in New Zealand voting intention polls
11 Mar 2017 » New data and functions in nzelect 0.3.0 R package
19 Nov 2016 » Earthquake energy over time
15 Nov 2016 » Extreme pie chart polishing
15 Oct 2016 » Statistics New Zealand experimental API initiative
12 Oct 2016 » Update of `ggseas` for seasonal decomposition on the fly
18 Sep 2016 » New Zealand Election Study individual level data
13 Sep 2016 » Analysing the Modelled Territorial Authority GDP estimates for New Zealand
04 Aug 2016 » nzcensus on GitHub
14 Jul 2016 » nzelect 0.2.0 on CRAN
16 Jun 2016 » Monthly Regional Tourism Estimates
22 May 2016 » Visual contrast of two robust regression methods
16 Apr 2016 » Election analysis contest entry part 4 - drivers of preference for Green over Labour party
09 Apr 2016 » Election analysis contest entry part 3 - interactive exploration of voting locations with leaflet and Shiny
04 Apr 2016 » Election analysis contest entry part 2 - building the nzelect R package
03 Apr 2016 » Election analysis contest entry part 1 - introducing the nzelect R package
23 Jan 2016 » Filling in the gaps - highly granular estimates of income and population for New Zealand from survey data
26 Dec 2015 » Network charts of commuting in New Zealand with R and D3
30 Oct 2015 » Modelled Territorial Authority GDP for New Zealand
10 Oct 2015 » Seasonal adjusment on the fly with X-13ARIMA-SEATS, seasonal and ggplot2
12 Sep 2015 » Sampling distribution of Gini coefficient
07 Sep 2015 » Transforming the breaks to match a scale
05 Sep 2015 » Creating a scale transformation
21 Aug 2015 » A better way of visualising income distributions with zeroes and negatives
15 Aug 2015 » Importing the New Zealand Income Survey SURF
01 Aug 2015 » New Zealand Data & APIs on GitHub

OpenData

11 Apr 2018 » Weighted survey data with Power BI compared to dplyr, SQL or survey
03 Feb 2018 » Average spend, activities and length of visit in the NZ International Visitor Survey
15 Oct 2017 » New Zealand fatal traffic crashes
26 Dec 2016 » Extracting data on shadow economy from PDF tables
18 Dec 2016 » Air quality in Indian cities
24 Nov 2016 » Declining sea ice in the Arctic
29 Oct 2016 » FiveThirtyEight's polling data for the US Presidential election
19 Oct 2016 » Tourism forecasting competition data in the Tcomp R package
15 Oct 2016 » Statistics New Zealand experimental API initiative
04 Aug 2016 » nzcensus on GitHub
14 Jul 2016 » nzelect 0.2.0 on CRAN
16 Apr 2016 » Election analysis contest entry part 4 - drivers of preference for Green over Labour party
09 Apr 2016 » Election analysis contest entry part 3 - interactive exploration of voting locations with leaflet and Shiny
04 Apr 2016 » Election analysis contest entry part 2 - building the nzelect R package
06 Feb 2016 » Data from the World Health Organization API
23 Jan 2016 » Filling in the gaps - highly granular estimates of income and population for New Zealand from survey data
26 Dec 2015 » Network charts of commuting in New Zealand with R and D3
12 Dec 2015 » Importance of exports and economic growth, cross-country time series
05 Dec 2015 » Inequality measures in the World Development Indicators
26 Nov 2015 » Deaths from assault over time in 40 relatively rich countries
30 Oct 2015 » Modelled Territorial Authority GDP for New Zealand
01 Aug 2015 » New Zealand Data & APIs on GitHub

Pacific

27 Jul 2024 » Population age changes in the Pacific
05 May 2024 » Reproducing and adapting the UN Population Projections
17 Oct 2023 » The 'V20' group of vulnerable countries and the MVI
30 Sep 2023 » The UN's proposed Multidimensional Vulnerability Index
17 Jun 2023 » Simpler drawing of Pacific choropleth maps
28 May 2023 » Covid-19 vaccination rates in the Pacific
26 May 2023 » Showing women proportion of Parliamentarians on a map
13 Oct 2022 » Pacific island choropleth map
14 Aug 2022 » Pacific island population pyramids

QualityControl

06 Mar 2016 » Explore with Shiny the impact of sample size on "p-charts"

Reproducibility

04 Jun 2023 » Simulating confounders, colliders and mediators
14 Nov 2020 » Reproduce analysis of a political attitudes experiment
07 Sep 2019 » Poisson point processes, mass shootings and clumping
22 Jul 2017 » Inter-country inequality and the World Development Indicators
24 Jun 2017 » State-space modelling of the Australian 2007 federal election
17 Jun 2017 » Stats NZ encouraging active sharing for microdata access projects
26 Feb 2017 » Success rates of appeals to the Supreme Court by Circuit
16 Sep 2016 » Why you need version control

RobustMethods

18 Nov 2018 » A more systematic look at suppressed data
06 Nov 2018 » Suppressed data (left-censored counts)
09 Jul 2017 » Improving state-space modelling of the Australian 2007 federal election
09 Apr 2017 » Exploring propensity score matching and weighting
05 Jun 2016 » Bootstrap and cross-validation for evaluating modelling strategies
29 May 2016 » Actual coverage of confidence intervals for standard deviation
22 May 2016 » Visual contrast of two robust regression methods
20 Sep 2015 » How to compare two blackbox timeseries generators?

Shiny

06 Aug 2023 » Model life tables
21 Dec 2020 » Shiny in production for commercial clients
07 Mar 2020 » New Zealand Election Study webtool
13 May 2018 » Fifteen New Zealand government Shiny web apps
20 Aug 2017 » More things with the New Zealand Election Study
14 May 2017 » Web app for individual party vote from the 2014 New Zealand election study
25 Apr 2017 » More cartograms of New Zealand census data (district and city level)!
23 Apr 2017 » Cartograms of New Zealand census data
16 Apr 2016 » Election analysis contest entry part 4 - drivers of preference for Green over Labour party
09 Apr 2016 » Election analysis contest entry part 3 - interactive exploration of voting locations with leaflet and Shiny
24 Feb 2016 » New Zealand Tourism Dashboard pushes Shiny to the max
23 Jan 2016 » Filling in the gaps - highly granular estimates of income and population for New Zealand from survey data
05 Dec 2015 » Inequality measures in the World Development Indicators
10 Oct 2015 » Seasonal adjusment on the fly with X-13ARIMA-SEATS, seasonal and ggplot2
01 Aug 2015 » New Zealand Data & APIs on GitHub

Simulations

14 Sep 2024 » Stepwise selection of variables in regression is Evil.
24 Aug 2024 » Polar-centred maps
20 Aug 2024 » Perturbing a non-symmetrical probability distribution
24 Jun 2023 » Weighted versus unweighted percentiles
04 Jun 2023 » Simulating confounders, colliders and mediators
01 Feb 2020 » Lewis Carroll's proposed rules for tennis tournaments
24 Nov 2019 » Cost-benefit analysis in R
09 Nov 2019 » A small simple random sample will often be better than a huge not-so-random one
03 Nov 2019 » Re-creating survey microdata from marginal totals
07 Sep 2019 » Poisson point processes, mass shootings and clumping
23 Dec 2018 » Simulating Persian Monarchs gameplay
24 Nov 2018 » Counting digits
18 Nov 2018 » A more systematic look at suppressed data
06 Nov 2018 » Suppressed data (left-censored counts)
07 Oct 2018 » Understanding the limitations of group-level inequality data
01 Jul 2018 » Spend on petrol by income
26 Jun 2018 » Demography simulations

Spatial

17 Jun 2023 » Simpler drawing of Pacific choropleth maps
26 May 2023 » Showing women proportion of Parliamentarians on a map
05 Dec 2020 » Animated map of World War I UK ship positions
11 Mar 2019 » Exploring swings in Australian federal elections
15 Oct 2017 » New Zealand fatal traffic crashes
04 Jun 2017 » Global choropleth maps of military expenditure
30 Apr 2017 » Luke-warm about micromaps
25 Apr 2017 » More cartograms of New Zealand census data (district and city level)!
23 Apr 2017 » Cartograms of New Zealand census data
19 Nov 2016 » Earthquake energy over time
04 Aug 2016 » nzcensus on GitHub
14 Jul 2016 » nzelect 0.2.0 on CRAN
02 Jul 2016 » Animated world inequality map
16 Jun 2016 » Monthly Regional Tourism Estimates
16 Apr 2016 » Election analysis contest entry part 4 - drivers of preference for Green over Labour party
09 Apr 2016 » Election analysis contest entry part 3 - interactive exploration of voting locations with leaflet and Shiny
26 Dec 2015 » Network charts of commuting in New Zealand with R and D3
30 Oct 2015 » Modelled Territorial Authority GDP for New Zealand
25 Oct 2015 » Silver flows in the seventeenth and eighteenth centuries

Stan

06 Sep 2020 » Mixture distributions and reporting times for Covid-19 deaths in Florida
29 Aug 2020 » Time series cross validation of effective reproduction number nowcasts
18 Jul 2020 » Estimating Covid-19 reproduction number with delays and right-truncation
06 Jun 2020 » Forecasts for the 2020 New Zealand elections using R and Stan
02 Mar 2019 » Bayesian state space modelling of the Australian 2019 election
01 Apr 2018 » Deaths per firearm violence event
20 Mar 2018 » Truncated Poisson distributions in R and Stan
15 Oct 2017 » New Zealand fatal traffic crashes
16 Sep 2017 » Time-varying house effects in New Zealand political polls
09 Jul 2017 » Improving state-space modelling of the Australian 2007 federal election
24 Jun 2017 » State-space modelling of the Australian 2007 federal election

StatisticalDisclosureControl

03 Nov 2019 » Re-creating survey microdata from marginal totals

StatsEducation

28 Jun 2019 » Too important to leave to the data scientists
05 May 2018 » Survey books, courses and tools
17 Feb 2018 » Books I liked in 2017
14 Jan 2017 » Books I like
21 Nov 2015 » Create ARIMA time series from bottom up
15 Nov 2015 » Linear model with time series random component
30 Aug 2015 » Getting started in applied statistics / datascience

Surveys

16 Nov 2024 » Design effects for stratified sub-populations
08 Sep 2024 » Gender and sexuality in Australian surveys and census
31 Aug 2024 » Sampling without replacement with unequal probabilities
24 Jun 2023 » Weighted versus unweighted percentiles
04 Oct 2020 » Facebook survey data for the Covid-19 Symptom Data Challenge
26 Sep 2020 » Free text in surveys - important issues in the 2017 New Zealand Election Study
07 Mar 2020 » New Zealand Election Study webtool
01 Mar 2020 » Log transform or log link? And confounding variables.
23 Feb 2020 » Body Mass Index
03 Nov 2019 » Re-creating survey microdata from marginal totals
19 May 2019 » Polls v results
15 May 2019 » House effects, herding, and the last few days before the election
22 Apr 2019 » Familiarisation with the Australian Election Study
02 Mar 2019 » Bayesian state space modelling of the Australian 2019 election
20 Feb 2019 » Seasonality in NZ voting preference?
26 Jan 2019 » What the world agrees with
24 Aug 2018 » Estimating relative risk in a simulated complex survey
05 May 2018 » Survey books, courses and tools
11 Apr 2018 » Weighted survey data with Power BI compared to dplyr, SQL or survey
03 Feb 2018 » Average spend, activities and length of visit in the NZ International Visitor Survey
05 Oct 2017 » nzelect 0.4.0 on CRAN with results from 2002 to 2014 and polls up to September 2017
16 Sep 2017 » Time-varying house effects in New Zealand political polls
09 Sep 2017 » The long view on New Zealand political polls
20 Aug 2017 » More things with the New Zealand Election Study
24 Jun 2017 » State-space modelling of the Australian 2007 federal election
21 May 2017 » Sankey charts for swinging voters
14 May 2017 » Web app for individual party vote from the 2014 New Zealand election study
06 May 2017 » Modelling individual party vote from the 2014 New Zealand election study
21 Mar 2017 » House effects in New Zealand voting intention polls
11 Mar 2017 » New data and functions in nzelect 0.3.0 R package
29 Oct 2016 » FiveThirtyEight's polling data for the US Presidential election
18 Sep 2016 » New Zealand Election Study individual level data
23 Jan 2016 » Filling in the gaps - highly granular estimates of income and population for New Zealand from survey data
15 Aug 2015 » Importing the New Zealand Income Survey SURF

Text

11 Oct 2020 » Hamlet, data models, interaction graphs and other cool stuff
26 Sep 2020 » Free text in surveys - important issues in the 2017 New Zealand Election Study
18 Feb 2017 » Moving largish data from R to H2O - spam detection with Enron emails
23 Jan 2017 » US Presidential inauguration speeches
05 Jan 2017 » Cross-validation of topic modelling
31 Dec 2016 » Sparse matrices, k-means clustering, topic modelling with posts on the 2004 US Presidential election

Timeseries

05 Feb 2021 » Visualising stock prices and volume
29 Aug 2020 » Time series cross validation of effective reproduction number nowcasts
07 Sep 2019 » Poisson point processes, mass shootings and clumping
28 Jul 2019 » Forecasting unemployment
20 Jul 2019 » Time series forecast cross-validation
26 Sep 2018 » Sri Lanka visitor arrivals
31 Aug 2018 » Rents in Melbourne
14 Aug 2018 » Time series intervention analysis with fuel prices
10 Aug 2018 » Leading indicators of economic growth
01 Aug 2018 » Business confidence and economic growth
15 Jun 2018 » Minor updates for ggseas and Tcomp R packages
19 Nov 2017 » Seasonality of plagues
15 Oct 2017 » New Zealand fatal traffic crashes
24 Jun 2017 » State-space modelling of the Australian 2007 federal election
26 Mar 2017 » New Zealand election forecasts
12 Mar 2017 » Simulations to explore excessive lagged X variables in time series modelling
22 Jan 2017 » Does seasonally adjusting first help forecasting?
26 Dec 2016 » Extracting data on shadow economy from PDF tables
24 Dec 2016 » forecastHybrid 0.3.0 on CRAN
18 Dec 2016 » Air quality in Indian cities
07 Dec 2016 » Why time series forecasts prediction intervals aren't as good as we'd hope
27 Nov 2016 » Error, trend, seasonality - ets and its forecast model friends
24 Nov 2016 » Declining sea ice in the Arctic
06 Nov 2016 » Timeseries forecasting using extreme gradient boosting
19 Oct 2016 » Tourism forecasting competition data in the Tcomp R package
12 Oct 2016 » Update of `ggseas` for seasonal decomposition on the fly
07 May 2016 » Announcing new forecastHybrid package
28 Mar 2016 » Seasonal decomposition in the ggplot2 universe with ggseas
08 Feb 2016 » ggseas package for seasonal adjustment on the fly with ggplot2
30 Jan 2016 » Better prediction intervals for time series forecasts
21 Dec 2015 » X13-SEATS-ARIMA as an automated forecasting tool
12 Dec 2015 » Importance of exports and economic growth, cross-country time series
21 Nov 2015 » Create ARIMA time series from bottom up
15 Nov 2015 » Linear model with time series random component
10 Oct 2015 » Seasonal adjusment on the fly with X-13ARIMA-SEATS, seasonal and ggplot2
30 Sep 2015 » Success rates of automated ARIMA fitting
20 Sep 2015 » How to compare two blackbox timeseries generators?
19 Sep 2015 » Autocorrelation functions of materially different time series

Tools

16 Nov 2024 » Design effects for stratified sub-populations
31 Aug 2024 » Sampling without replacement with unequal probabilities
30 Jul 2023 » Log transforms, geometric means and estimating population totals
25 Feb 2023 » Transformations for compositional data
14 Jun 2021 » Principal components and penguins
14 Feb 2021 » Making a database of security prices and volumes
13 Sep 2020 » Trying out Processing
18 Jul 2020 » Estimating Covid-19 reproduction number with delays and right-truncation
30 May 2020 » A health data firm making extraordinary claims about its data
23 May 2020 » Ordering bars within their clumps in a bar chart
06 Apr 2020 » How to make that crazy Fox News y axis chart with ggplot2 and scales
01 Feb 2020 » Lewis Carroll's proposed rules for tennis tournaments
26 Jan 2020 » Analysing the effectiveness of tennis tournament seeding
22 Dec 2019 » Analysing large data on your laptop with a database and R
24 Nov 2019 » Cost-benefit analysis in R
09 Nov 2019 » A small simple random sample will often be better than a huge not-so-random one
03 Nov 2019 » Re-creating survey microdata from marginal totals
07 Apr 2019 » Using svglite with web fonts
26 Jan 2019 » What the world agrees with
07 Jul 2018 » Setting up RStudio Server, Shiny Server and PostgreSQL
15 Jun 2018 » Minor updates for ggseas and Tcomp R packages
13 May 2018 » Fifteen New Zealand government Shiny web apps
05 May 2018 » Survey books, courses and tools
11 Apr 2018 » Weighted survey data with Power BI compared to dplyr, SQL or survey
09 Dec 2017 » Some quirks with R and SQL Server
09 Sep 2017 » R Markdown for documents with logos, watermarks, and corporate styles

Tourism

26 Sep 2018 » Sri Lanka visitor arrivals
15 Jun 2018 » Minor updates for ggseas and Tcomp R packages
03 Feb 2018 » Average spend, activities and length of visit in the NZ International Visitor Survey
24 Feb 2016 » New Zealand Tourism Dashboard pushes Shiny to the max

Transformations

06 Nov 2024 » Regressions where the coefficients are a simplex.
24 Aug 2024 » Polar-centred maps
20 Aug 2024 » Perturbing a non-symmetrical probability distribution
30 Jul 2023 » Log transforms, geometric means and estimating population totals
25 Feb 2023 » Transformations for compositional data
14 Jun 2021 » Principal components and penguins
18 Apr 2020 » Pragmatic prediction intervals from a quasi-likelihood GLM
06 Apr 2020 » How to make that crazy Fox News y axis chart with ggplot2 and scales
01 Mar 2020 » Log transform or log link? And confounding variables.
23 Feb 2020 » Body Mass Index
17 Aug 2018 » Relative risk ratios and odds ratios
05 Aug 2017 » Sampling distribution of weighted Gini coefficient
22 Jan 2017 » Does seasonally adjusting first help forecasting?
28 Aug 2016 » Dual axes time series plots with various more awkward data
18 Aug 2016 » Dual axes time series plots may be ok sometimes after all
07 Sep 2015 » Transforming the breaks to match a scale
05 Sep 2015 » Creating a scale transformation
21 Aug 2015 » A better way of visualising income distributions with zeroes and negatives

Visualisation

17 Oct 2023 » The 'V20' group of vulnerable countries and the MVI
30 Sep 2023 » The UN's proposed Multidimensional Vulnerability Index
23 Sep 2023 » Finding a circle in a chart
26 May 2023 » Showing women proportion of Parliamentarians on a map
11 Oct 2020 » Hamlet, data models, interaction graphs and other cool stuff
09 Aug 2020 » Essentially random isn't the same as actually random
02 Aug 2020 » Visualisation options to show growth in occupations in the Australian health industry
23 May 2020 » Ordering bars within their clumps in a bar chart
20 Apr 2019 » Animating the US Treasury yield curve rates

VotingBehaviour

26 Sep 2020 » Free text in surveys - important issues in the 2017 New Zealand Election Study
06 Jun 2020 » Forecasts for the 2020 New Zealand elections using R and Stan
07 Mar 2020 » New Zealand Election Study webtool
19 May 2019 » Polls v results
15 May 2019 » House effects, herding, and the last few days before the election
22 Apr 2019 » Familiarisation with the Australian Election Study
31 Mar 2019 » Website with Australian federal election forecasts
11 Mar 2019 » Exploring swings in Australian federal elections
02 Mar 2019 » Bayesian state space modelling of the Australian 2019 election
20 Feb 2019 » Seasonality in NZ voting preference?
07 Oct 2017 » New Zealand 2017 election results
05 Oct 2017 » nzelect 0.4.0 on CRAN with results from 2002 to 2014 and polls up to September 2017
16 Sep 2017 » Time-varying house effects in New Zealand political polls
09 Sep 2017 » The long view on New Zealand political polls
20 Aug 2017 » More things with the New Zealand Election Study
13 Jul 2017 » Who turned out to vote in the 2014 New Zealand general election?
09 Jul 2017 » Improving state-space modelling of the Australian 2007 federal election
24 Jun 2017 » State-space modelling of the Australian 2007 federal election
21 May 2017 » Sankey charts for swinging voters
14 May 2017 » Web app for individual party vote from the 2014 New Zealand election study
06 May 2017 » Modelling individual party vote from the 2014 New Zealand election study
26 Mar 2017 » New Zealand election forecasts
21 Mar 2017 » House effects in New Zealand voting intention polls
11 Mar 2017 » New data and functions in nzelect 0.3.0 R package
29 Oct 2016 » FiveThirtyEight's polling data for the US Presidential election
18 Sep 2016 » New Zealand Election Study individual level data
14 Jul 2016 » nzelect 0.2.0 on CRAN
16 Apr 2016 » Election analysis contest entry part 4 - drivers of preference for Green over Labour party
09 Apr 2016 » Election analysis contest entry part 3 - interactive exploration of voting locations with leaflet and Shiny
04 Apr 2016 » Election analysis contest entry part 2 - building the nzelect R package
03 Apr 2016 » Election analysis contest entry part 1 - introducing the nzelect R package

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